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On promise problems: A survey

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The notion of promise problems was introduced and initially studied by Even, Selman and Yacobi (Inform. and Control, Vol. 61, pages 159-173, 1984). In this article we survey some of the applications that this notion has found in the twenty years that elapsed. These include the notion of "unique solutions", the formulation of "gap problems" as capturing various approximation tasks, the identification of complete problems (especially for the class SZK), the indication of separations between certain computational resources, and the enabling of presentations that better distill the essence of various proofs. © Springer-Verlag Berlin Heidelberg 2006.




Goldreich, O. (2006). On promise problems: A survey. Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Springer Verlag.

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